/* package whatever; // don't place package name! */

import java.util.*;
import java.lang.*;
import java.io.*;

/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		Scanner sc = new Scanner(System.in);
		int num = sc.nextInt();
		int arr[] = new int[num];
		for(int i=0;i<num;i++) arr[i]=sc.nextInt();
		int k = sc.nextInt();
		Map<Integer,Integer> mp= new HashMap<>();
		int psum = 0;
		int min = num;
		mp.put(0,0);
		for(int i=0;i<num;i++){
			psum += arr[i];
			if(mp.containsKey(psum-k)){
				int left = mp.get(psum-k);
				min=Math.min(min,i-left+1);
			}
			mp.put(psum,i);
		}
		System.out.println(min);
	}
}